Shell Scripting Operators - Learn Devops in Kannada

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In shell scripting, operators are used to perform various operations, such as arithmetic, comparisons, string manipulation, and logic. These operators allow you to interact with variables, files, and control flow within your scripts. Here’s a detailed breakdown of different types of operators in shell scripting:

1. Arithmetic Operators
Arithmetic operators are used for mathematical operations like addition, subtraction, multiplication, and division. You can use them with (( )) or let.

2. Relational (Comparison) Operators
Comparison operators are used to compare two values, returning true or false. Typically used within conditional statements like if or while.

Logical Operators
Logical operators are used to combine multiple conditions, typically used within control structures

Assignment Operators
Assignment operators are used to assign values to variables and perform arithmetic or logic while doing so.

String Operators
These operators are used to compare and manipulate strings.

File Test Operators
These operators are used to check the properties and existence of files.

Bitwise Operators
Bitwise operators perform operations at the bit level, useful for handling binary data.

Ternary Operator
A form of shorthand for conditional expressions. It’s not widely used in basic shell scripts but can be done using arithmetic evaluation.
(( condition ? true_action : false_action ))

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